Every iPhone needs a few good water testing apps. We benchmark 248+ of them on App Store rating, freshness, and pricing, then surface the standouts so you don't have to scroll the App Store yourself.
This app analyzes your pool or hot tub water test results and provides an instant safety score. It offers precise chemical dosing instructions and step-by-step solutions for common water issues, helping you maintain safe and clean swimming conditions.
This app helps DIY pool owners maintain their pools with expert water test analysis and personalized product recommendations. It offers troubleshooting for common pool problems and allows users to shop for recommended products online.
Discover what's in your bottled or tap water with detailed reports and easy-to-understand ratings. Scan barcodes or search by location to compare brands, identify contaminants, and make informed choices for your health.
Discover healthier products with independent lab testing. This platform provides transparent data and unbiased ratings for items like water, filters, and supplements, helping you make informed choices for your well-being.
Clorox Pool tops our water testing apps ranking as of July 2026, with a 4.6-star average from 29K App Store ratings, and it's free to download.
Are there free water testing apps for iPhone?
Yes — 20 of the top water testing apps we rank are free to download, including Clorox Pool and H20Score - Water Rankings.
Does Clorox Pool have ads or in-app purchases?
Clorox Pool shows ads and has no in-app purchases, according to its App Store listing as of July 2026.
How many water testing apps are on the App Store?
We track 248+ water testing apps on the iOS App Store as of July 2026, ranked by rating, recency, and analysis of real user reviews.
What does the Clorox Pool App do?
The Clorox Pool App provides DIY pool owners with tools to maintain their pools. It offers expert water test analysis using scan-to-test technology, personalized product recommendations, and troubleshooting for common pool problems. The app aims to simplify pool care so users can spend more time enjoying their pool.
How does the water testing feature work?
The app utilizes proprietary, AI-driven scan-to-test technology. Users can scan their pool test strips or manually enter liquid or test strip results. The app then provides an expert water test analysis based on this information.